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Boulder Creek, CA Historical First Ancestry Data
ACS 2010-2014 data
4,285 (90.38%) out of the total population of 4,741 reported first ancestry.
| Boulder Creek, CA | % of the Total Population | California | U.S. | |
| Arab | 0 | 0.00%, see rank | 0.72% | 0.56% |
| Czech | 29 | 0.61%, see rank | 0.22% | 0.47% |
| Danish | 68 | 1.43%, see rank | 0.46% | 0.42% |
| Dutch | 124 | 2.62%, see rank | 0.99% | 1.40% |
| English | 785 | 16.56%, see rank | 5.94% | 8.02% |
| French | 329 | 6.94%, see rank | 2.15% | 3.34% |
| German | 955 | 20.14%, see rank | 8.51% | 15.03% |
| Greek | 15 | 0.32%, see rank | 0.35% | 0.41% |
| Hungarian | 23 | 0.49%, see rank | 0.32% | 0.46% |
| Irish | 573 | 12.09%, see rank | 6.69% | 10.80% |
| Italian | 399 | 8.42%, see rank | 3.97% | 5.52% |
| Norwegian | 329 | 6.94%, see rank | 1.02% | 1.42% |
| Polish | 149 | 3.14%, see rank | 1.32% | 3.01% |
| Portuguese | 157 | 3.31%, see rank | 0.91% | 0.44% |
| Russian | 84 | 1.77%, see rank | 1.13% | 0.92% |
| Scotch-Irish | 143 | 3.02%, see rank | 0.61% | 0.99% |
| Scottish | 158 | 3.33%, see rank | 1.34% | 1.72% |
| Subsaharan African | 74 | 1.56%, see rank | 0.69% | 0.95% |
| Swedish | 98 | 2.07%, see rank | 1.09% | 1.27% |
| Swiss | 28 | 0.59%, see rank | 0.27% | 0.30% |
| Ukrainian | 0 | 0.00%, see rank | 0.27% | 0.31% |
| American | 264 | 5.57%, see rank | 3.22% | 7.12% |
| Welsh | 0 | 0.00%, see rank | 0.43% | 0.57% |
ACS 2008-2012 data
4,734 (91.25%) out of the total population of 5,188 reported first ancestry.
| Boulder Creek, CA | % of the Total Population | California | U.S. | |
| Arab | 0 | 0.00%, see rank | 0.70% | 0.53% |
| Czech | 26 | 0.50%, see rank | 0.24% | 0.50% |
| Danish | 62 | 1.20%, see rank | 0.50% | 0.45% |
| Dutch | 184 | 3.55%, see rank | 1.08% | 1.51% |
| English | 812 | 15.65%, see rank | 6.39% | 8.53% |
| French | 313 | 6.03%, see rank | 2.28% | 3.54% |
| German | 1,213 | 23.38%, see rank | 9.10% | 15.79% |
| Greek | 15 | 0.29%, see rank | 0.35% | 0.42% |
| Hungarian | 26 | 0.50%, see rank | 0.34% | 0.48% |
| Irish | 774 | 14.92%, see rank | 7.13% | 11.36% |
| Italian | 609 | 11.74%, see rank | 4.08% | 5.66% |
| Norwegian | 194 | 3.74%, see rank | 1.06% | 1.46% |
| Polish | 205 | 3.95%, see rank | 1.35% | 3.13% |
| Portuguese | 78 | 1.50%, see rank | 0.96% | 0.46% |
| Russian | 76 | 1.46%, see rank | 1.18% | 0.97% |
| Scotch-Irish | 109 | 2.10%, see rank | 0.67% | 1.07% |
| Scottish | 230 | 4.43%, see rank | 1.43% | 1.81% |
| Subsaharan African | 45 | 0.87%, see rank | 0.72% | 0.93% |
| Swedish | 64 | 1.23%, see rank | 1.16% | 1.34% |
| Swiss | 19 | 0.37%, see rank | 0.28% | 0.31% |
| Ukrainian | 9 | 0.17%, see rank | 0.26% | 0.31% |
| American | 191 | 3.68%, see rank | 2.78% | 6.72% |
| Welsh | 32 | 0.62%, see rank | 0.46% | 0.60% |
ACS 2006-2010 data
4,890 (90.79%) out of the total population of 5,386 reported first ancestry.
| Boulder Creek, CA | % of the Total Population | California | U.S. | |
| Arab | 0 | 0.00%, see rank | 0.66% | 0.50% |
| Czech | 11 | 0.20%, see rank | 0.26% | 0.53% |
| Danish | 71 | 1.32%, see rank | 0.53% | 0.48% |
| Dutch | 153 | 2.84%, see rank | 1.15% | 1.63% |
| English | 974 | 18.08%, see rank | 6.77% | 9.02% |
| French | 244 | 4.53%, see rank | 2.44% | 3.77% |
| German | 1,379 | 25.60%, see rank | 9.60% | 16.51% |
| Greek | 8 | 0.15%, see rank | 0.38% | 0.44% |
| Hungarian | 9 | 0.17%, see rank | 0.36% | 0.51% |
| Irish | 949 | 17.62%, see rank | 7.50% | 11.76% |
| Italian | 623 | 11.57%, see rank | 4.21% | 5.78% |
| Norwegian | 81 | 1.50%, see rank | 1.10% | 1.51% |
| Polish | 202 | 3.75%, see rank | 1.41% | 3.24% |
| Portuguese | 55 | 1.02%, see rank | 1.02% | 0.47% |
| Russian | 73 | 1.36%, see rank | 1.22% | 1.01% |
| Scotch-Irish | 215 | 3.99%, see rank | 1.19% | 1.72% |
| Scottish | 270 | 5.01%, see rank | 1.54% | 1.92% |
| Subsaharan African | 0 | 0.00%, see rank | 0.72% | 0.91% |
| Swedish | 52 | 0.97%, see rank | 1.25% | 1.41% |
| Swiss | 12 | 0.22%, see rank | 0.31% | 0.33% |
| Ukrainian | 11 | 0.20%, see rank | 0.26% | 0.31% |
| American | 206 | 3.82%, see rank | 2.43% | 6.28% |
| Welsh | 85 | 1.58%, see rank | 0.49% | 0.63% |
ACS 2005-2009 data
3,578 (93.96%) out of the total population of 3,808 reported first ancestry.
| Boulder Creek, CA | % of the Total Population | California | U.S. | |
| Arab | 12 | 0.32%, see rank | 0.66% | 0.50% |
| Czech | 0 | 0.00%, see rank | 0.27% | 0.54% |
| Danish | 30 | 0.79%, see rank | 0.55% | 0.49% |
| Dutch | 85 | 2.23%, see rank | 1.19% | 1.68% |
| English | 849 | 22.30%, see rank | 7.02% | 9.29% |
| French | 187 | 4.91%, see rank | 2.56% | 3.90% |
| German | 1,026 | 26.94%, see rank | 9.93% | 16.89% |
| Greek | 14 | 0.37%, see rank | 0.38% | 0.45% |
| Hungarian | 23 | 0.60%, see rank | 0.37% | 0.52% |
| Irish | 611 | 16.05%, see rank | 7.79% | 12.01% |
| Italian | 392 | 10.29%, see rank | 4.33% | 5.91% |
| Norwegian | 39 | 1.02%, see rank | 1.14% | 1.55% |
| Polish | 120 | 3.15%, see rank | 1.45% | 3.32% |
| Portuguese | 37 | 0.97%, see rank | 1.05% | 0.48% |
| Russian | 43 | 1.13%, see rank | 1.25% | 1.04% |
| Scotch-Irish | 148 | 3.89%, see rank | 1.23% | 1.77% |
| Scottish | 193 | 5.07%, see rank | 1.61% | 1.97% |
| Subsaharan African | 0 | 0.00%, see rank | 0.71% | 0.88% |
| Swedish | 25 | 0.66%, see rank | 1.28% | 1.45% |
| Swiss | 13 | 0.34%, see rank | 0.32% | 0.34% |
| Ukrainian | 16 | 0.42%, see rank | 0.27% | 0.32% |
| American | 204 | 5.36%, see rank | 2.66% | 6.43% |
| Welsh | 102 | 2.68%, see rank | 0.52% | 0.65% |
US Census 2000 data
3,419 (83.78%) out of the total population of 4,081 reported first ancestry.
| Boulder Creek, CA | % of the Total Population | California | U.S. | |
| Arab | 5 | 0.12%, see rank | 0.50% | 0.36% |
| Czech | 0 | 0.00%, see rank | 0.14% | 0.27% |
| Danish | 21 | 0.51%, see rank | 0.38% | 0.30% |
| Dutch | 67 | 1.64%, see rank | 0.71% | 0.91% |
| English | 578 | 14.16%, see rank | 4.91% | 5.91% |
| French | 114 | 2.79%, see rank | 1.57% | 2.39% |
| German | 467 | 11.44%, see rank | 6.45% | 10.81% |
| Greek | 43 | 1.05%, see rank | 0.29% | 0.34% |
| Hungarian | 6 | 0.15%, see rank | 0.27% | 0.32% |
| Irish | 423 | 10.37%, see rank | 4.72% | 6.85% |
| Italian | 222 | 5.44%, see rank | 3.41% | 4.59% |
| Norwegian | 72 | 1.76%, see rank | 0.92% | 1.15% |
| Polish | 56 | 1.37%, see rank | 0.95% | 2.24% |
| Portuguese | 92 | 2.25%, see rank | 0.75% | 0.33% |
| Russian | 6 | 0.15%, see rank | 0.90% | 0.68% |
| Scotch-Irish | 121 | 2.96%, see rank | 0.87% | 1.17% |
| Scottish | 112 | 2.74%, see rank | 1.00% | 1.12% |
| Subsaharan African | 0 | 0.00%, see rank | 0.51% | 0.61% |
| Swedish | 125 | 3.06%, see rank | 0.86% | 0.87% |
| Swiss | 0 | 0.00%, see rank | 0.21% | 0.19% |
| Ukrainian | 0 | 0.00%, see rank | 0.20% | 0.24% |
| American | 92 | 2.25%, see rank | 3.37% | 7.33% |
| Welsh | 68 | 1.67%, see rank | 0.27% | 0.31% |
* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.